Pete Kosednar, a Scottsdale window-cleaner and blogger, pulled out his video camera this morning when he saw a hiker walk by on Camelback Mountain with her dog unleashed.
Then, he says -- and as the video below appears to show -- he simply reminded the woman that her dog was supposed to be on a leash.
The woman's mini-Cocker Spaniel isn't much of a threat, but Kosednar's warning -- and camera -- seem to bring out the woman's inner pit bull.
The hiker struts over to Kosednar, appears to give him a shove, tells him to stop taping her, then curses at him as she walks away.
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Kosednar says the video shows evidence of an assault. A couple of Phoenix cops took Kosednar's statement on the incident, but "they didn't do anything," he says.
The law requires dogs to be on a leash at all times in public places in Phoenix, including at mountain parks like Camelback Mountain.
See video below: